// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()//初始化
// 云函数入口函数
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext()
  const db = cloud.database()
  return db.collection('user')
        .add({
          data: {
            _openid: event._openid
          }
        })
  }